Your room is fairly good sized at about 300sq ft. For whatever type of music you listen to, a good efficient speaker will give you much more mileage than one with average efficiency, by this I mean anything >90db/w should be able to fill your room quite easily.
If you like the JM Labs, then you should also consider the Cabasse Baltic/Thor combination.
The one other advantage of efficient spks is that you could quite easily get good SPLs with even lower powered tube amps, thus saving you a bundle on expensive high powered tube amps. A good 50w tube amp would already be "too much" power.
Sorry if I confused you. Just giving an alternative view.
If you like the JM Labs, then you should also consider the Cabasse Baltic/Thor combination.
The one other advantage of efficient spks is that you could quite easily get good SPLs with even lower powered tube amps, thus saving you a bundle on expensive high powered tube amps. A good 50w tube amp would already be "too much" power.
Sorry if I confused you. Just giving an alternative view.